Bosch Autodome IP 4000 HD, Руководство по эксплуатации

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Select the range within which the ALC will operate. A positive value is more useful for low-
light conditions; a negative value is more useful for very bright conditions.
The table below identifies the default values in the Exposure fields, depending on the options
selected for ALC mode.
Field Option Default values,
field “Min. frame
rate”
Default values,
field “Default
shutter”
Default values, field
“Shutter time”
ALC
mode Fluorescent 50
Hz 15 ips 1/33 1/100
Fluorescent 60
Hz 15 ips 1/30 1/120
Outdoor 15 ips 1/30 1/500
Automatic exposure
Select to let the camera automatically set the optimum shutter speed. The camera tries to
maintain the selected shutter speed as long as the light level of the scene permits.
4
Select the minimum frame rate for automatic exposure. (The values available depend on
the value set for the Base frame rate in the Installer Menu.)
Fixed exposure
Select to set a fixed shutter speed.
4
Select the shutter speed for fixed exposure. (The values available depend on the value set
for the ALC mode.)
Day/night
Select the appropriate mode from the drop-down list.
Auto - the camera switches the IR cut-off filter on and off depending on the scene illumination
level.
Monochrome - the IR cut-off filter is removed, giving full IR sensitivity.
Color - the camera always produces a color signal regardless of light levels.
Switch level
Set the video level at which the camera in Auto mode switches to monochrome operation (-15
to 0 to +15).
A low (negative) value means that the camera switches to monochrome at a lower light level. A
high (positive) value means that the camera switches to monochrome at a higher light level.
Enhance
Sharpness level
The slider adjusts the sharpness level between -15 and +15. Zero position of the slider
corresponds to the factory default level.
A low (negative) value makes the picture less sharp. Increasing sharpness brings out more
detail. Extra sharpness can enhance the details of license plates, facial features and the edges
of certain surfaces but can increase bandwidth requirements.
Backlight compensation
Select Off to switch off backlight compensation.
Select On to capture details in high-contrast and extremely bright-dark conditions.
Contrast enhancement
Select On to increase the contrast in low contrast conditions.
6.5
AUTODOME IP 4000 HD / AUTODOME
IP 5000 HD/IR
Camera | en 23
Bosch Security Systems Operation Manual 2016.04 | 0.4 |